Snap-fastener-setting machine



Deb. 30. 1 924. 1521141 F. WARNER SNAP FASTENER SETTING MACHINE Filed June 20 1923 a Sheets-Sheet 1 F. E. WARNER SNM FASTENER- SETTING MACHINE Dec. 30, 1924.

Filed June 20, 1923 8 Sheets-Sheet 2 Dec; 30. 1924.

"1,521,141 F. E. WARNER SNAP FASTENER SETTING MACHINE F'ild June 20, 1923 SSheecs-Sheet 5 Dec. 30; 1 924.

F. E. WARNER SNAP FASTENER SETTING MACHINE Filed June 20, 5

8 Sheets-Sheet 4 De er 30. 1924.

F. E.v WARNER SNAP EASTENER SETTING MACHINE Filed June 20, 1925 8 Sheets-Sheet 5 Dec. 30. 1924. 1521mm:

F. E WARNER SNAP FASTENER SEIITIQNG MACHINE Filed June 20, 1925 1 a Sheets-Sheet 7.]

Dec. 1924,

F. E. WARNER sum? FASTENER SETTING MACHINE 8 Sheets-Sheet 8 Filed June 20, 1923 Patented Dec. 30, 1924.

TENT OFFICE.

FRANK E. WARNER, OE W'ATERBURY, CONNECTICUT, ASSIGNOB TO SCOVILL MANU- FACTURING COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATION OF GON- SNAP-FASTENER-SETTING MACHINE.

- Application filed June 20, 1923. Serial No. 646,585.

To all whom it may concern:

Be it known that I, FRANK E. VJARNER, a citizen of the United States, residing at Waterbury, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Snap-Fastener-Setting Machines, of which the following is a full, clear, and exact description.

The object of this invention is to provide a machine for attaching snap fasteners, and particularly for attaching the stud member of the common stud and socket snap fastener such, for example, as is used on gloves.

The invention consists in a' machine for attaching snap fasteners, comprising, essentially, mechanism for uniting the post eyelet of the fastener with the stud member, to attach the stud member to an article, including a setting anvil and a setting plunger, devices for feeding the eyelet and stud member to and positioning them with respect to the anvil and plunger respectively, and mechanism for operating all of these parts in timed relation to each other to accomplish the setting of the fastener upon the article, as I will proceed now to explain and finally claim. 7

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 ma plan view of the complete machine. Fig. 2 is a front elevation of same. Fig. 3 is a side elevation of the machine as seen from the left of Fig. 2. Fig. 4 is aside elevation of the machine as seen from the right of Fig. 2. Fig. 5 is a central Vertical section of. the machine upon a greatly enlarged scale and showing in detail the various cooperative elements of the set ting mechanism, these parts being shown in the positions which they assume when the machine is at rest. Fig. 6 is a view similar to Fig. 5 but showing only a portion of the parts illustrated therein, these parts having the positions assumed by them when a fastener part is being fed thereto. Fig. 7 is a fragmentary sectional plan view taken substantially in the plane of line 7-7, Fig. 5. Fig. 8 is a front elevation of the feed mechanism for the post eyelets. Fig. 9* is a top plan of the raceway and cutoff for the stud members. Fig. 10 is a section taken substantially 1n the plane of line 10-10, Fig.

1 and showing in detail the feed raceway with its cutoff and the pusher for the stud members. Fig. 11 is a side elevation of a portion of the post eyelet hopper and raceway. Flg. 12 is a section talien on the line 1212 of Fig. 11 illustrating a discharge or cleaning opening for the hopper with its cap. Fig. 13 is a view similar to Fig. 11, but showing a portion of the hopper for the stud members, and its raceway. Fig. 1a is a schematic View of the cams and levers for operating the various parts of the setting mechanism, Fig. 15 is a detail of the post eyelet pusher and its operating mechanism. Figs. 16, 17, 18 and 19 illustrate various steps in the operation of setting or attaching the fastener to a piece of material. Fig. 20 shows a strip of material provided with openings to receive the post eyelets. Fig. 21 illustrates in greatly enlarged cross section, a stud member attached to a piece of material.

My machine, although adapted for power drive, is, in a nature, portable, and may be mounted for use either upon a bench or table or a special stand may be provided for it. To this end, and in the interest of compactness and economy in space, all of the working parts in my machine are carried by a frame 1 provided with bearings 2 in which the main shaft 3 is mounted, and on this shaft is arranged a plurality of cams, hereinafter described, for imparting predetermined relative timed movement to the various operative parts of the setting mecha nism.

Rising from the frame 1 is a front 4 provided with wings 5 and 6 and to these wings are secured brackets 7 and 8 respectively. The bracket is provided with a bearing 9 in which is journaled a spindle 10 upon which is mounted a hopper 11 adapted to contain the stud members, these members being fed to the interior of the hopper through a chute 12 carried by the bracket 7 and having its top closed by a cover 13. On the opposite end of the spindle 10 is mounted a pulley 14: carrying a pawl 15 which engages. a ratchet 16 fixed on the spindle 10. The pulley 14: is mounted for free rotation upon the spindle 10 in one direction and is adapted to drive the spindle and with it the hopper 11 by meansof the pawl and ratchet when rotated in the opposite direction.

The bracket 8 has a bearing 17 carrying a spindle 18 upon which is mounted a hopper 19 adapted to receive post eyelets through a chute 20 provided with a cover 21, similar in all respects to the arrangement of the hopper 11. The other end of the spindle 18 carries a pulley 22, pawl 23 and ratchet '24, similar to those used in connection with the spindle 1G and operating in like manner, The pulleys 14 and 22 are driven by means of belts 25 and 26 and pulleys'25 and 26 respectively from a back shaft 27 carried in bearing brackets 28 rising from the wings 5 and 6, and this back shaft is in turn driven by means of across belt 29 and pulley 29 from a pulley 30 carried by the shaft 3.

Upon the front 4' is provided a plunger block'31 having bearings 32 in which is mounted a lever 33 carried upon an-adjust able eccentric 34 of a bearing pin 35'. One end of the lever 33 is connected through a link 36 with the setting plunger 37, mounted ting of fasteners upon materials of diderent thicknesses and for other purposes tending to the efficient and smooth operation of the fed to the jaws one at a time.

machine.

Upon one side of the plunger block 31 is mounted a pair of jaws 42 adapted to receive and hold the stud members as they are These jaws are in all respects similar to those shown in the copending application of Frank E. Warner and Augustus H. Cosgrove, filed December'l, 1922, Serial No. 604,279, and

. operate in the same manner, but, instead of V on being formed to receive buttons as are those of the machine of the application mentioned, they are formed to receive the stud members.

The stud members are fed through slots 43 (Fig. 13) in the hopper 11 into a raceway 44 down which they slide by gravity until intercepted by a cutotl. 45 (Figs. 9 and. 10) and, upon intermittent operation of this cutoif, are allowed to drop one at a time to a point 46 in the raceway in line with a cavity 47, formed by the jaws 42, from which position they are transferred into the cavity 47 in the jaws by means of a reciprocating stud pusher 48 in predetermined timed relation with respect to the operation of the other parts of the setting mechanism.

The cutoff 45 is actuated through a link '49 by means of a lever; 50 provided with a roller 51 riding upon a cam 52 carried by the member 41, and this roller is held in by spring 53 constant contact with the cam (Fig. 14).

The stud pusher 48 isoperatedthrough a.

rocker arm 54. pivoted at 55 to a stationary part of the machine and having one of its ends slotted as shown at56 (Fig. 7) to receive a pin 57 carriedloy the pusher 48, and

its other end 58 is provided with a roller 59 which rides against a cam 60 mounted -upon the shaft 3. The roller 59 is held constantly in contact with the means of'a spring 61 (Fig; 1).

The raceway 44 may be cleared by removing a section 62.1nade detachable therefrom for this purpose.

The post eyelets are fed from the hopper 19 through slots 63 therein to a raceway 64 down which they slide by gravity until intercepted by a cutofl'65 (see Figs- 5, 8 and 14). This cutoff is oscillated in timed relation to the operation of the other parts of the setting mechanism to release theeye lets one at a time and permit them todrop to a point 66in a guide 67, from which point'they are pushed forward to setting position upon the anvil, later described, by means of an eyelet pusher68. Motion is imparted to thispusher through a link 69 connected with a'slide 70 (see Figs. 1, 5, 7 and 15) carrying a roller71 engaging a cam 60 by roller .is held in constant contact with its 78. In order to prevent injury to the machine should the eyelet cutoff 65 become ammed, I provide a spring connection in the link 74, comprising arod 79 fixed to a connector 80 and adapted to slide in an offset portion 81 of the link 74, a spring 82being V interposed between the connector 80 and the offset portion 81 and surrounding the rod 79. Adjustment of this connection between the cutoff and the arm 75 may be obtained by means of the nuts 83 threaded upon the end of the rod 7 9 and abutting against the otlset 81 under the pressure of the spring 82.

The setting anvil comprises a bloek' 84 mounted in a sleeve 85 and secured therein by a set screw 86. This sleeve is held stationary within the frame 1 by a cap screw 87. Surrounding the block 84 and'engaging the sleeve 85 is a-1novable guide 87 pressed'normally upward by a spring 88 and adapted to be vertically reciprocated in timed relation to the operation of the 7100 cam 72 mounted upon the shaft 3. "This other parts of the setting mechanism by means of a lever 89 pivoted at 90 in the wings 5 and 6 and provided with a roller 91 (Fig. 14) engaging an internal cam 92 carried by the member 41. The roller is held in constant contact with the cam by the action of the spring 88. The anvil block 84 is provided with a centering pin 93 backed up by a spring 94.

In the operation of the machine, it is desirable to have the guide 87 extei'id above the plane of the upper surface of table 94, as shown in Fig. 6, so that when a post eyelet is pushed forward by the pusher 66, it will be certain to drop into correct position upon the anvil block 84. However, there can be no projection above the table 94 between the end thereof and the anvil block, and were the guide 87 continued around to the back of the block 84, it would project above the table. If the guide were cut off at the back so as to extend flush with the table at that point when raised, a cavity would be left between the anvil and table when the guide is in lowered position, as

.in Fig. 5. This would be undesirable, and

in order to obviate this diliiculty, I have provided a relatively'movable filler block 95 carried'by the guide 87. This filler block is provided with a sleeved extension 96 adapted to slide within a cavity 97 in the guide 87 and backed up by a spring 98. A pin 99 extends through the upper portion of the filler block and into complemental slots 100 in the guide 87 upon opposite sides thereof. By this arrangement, it will be seen, by reference to Figs. 5 and 6, that when the guide 87 is in its at rest, or lowered position, Fig. 5, the engagement of the pin 99 with the upper ends of the slots 100 will hold the filler block 95 in such position that its upper surface is in the same plane as the upper surface of the anvil block 84, and when the guide 87 is in its raised position,

' Fig. 6, a lip 101 on block 95 will, through its contact with'the under surface 102 of the table 94, position the filler block with its upper surface in a plane with the upper surface of the table 94 so that a smooth continuous surface is presented to the under side of the eyelets as they are pushed forward from the guide 67 to the cavity formed around the anvil block 84 by the guide 87.

In order that the hoppers 11 and 19 may be quickly and easily emptied of fastener parts when desired, 1 provide them with discharge or cleaning openings 103' and 104 respectively closed by similar caps 105 (see Figs. 3, 4, 11, 12 and 13) held in place by suitable clips 106.

Power may :be supplied to the machine through its shaft 3 in any approved way as by means of a pulley 107 provided with a clutch 108 of a well known type adapted when operated and immediately released to allow the machine to function through one complete cycle and then stop, or when held engaged to cause the machine to operate con tinuously until the clutch is again released. In order to prevent the momentum attained by the machine, in operating through a single cycle, from causing the parts of the machine to run past the desired stopping point, 1 provide a friction brake 109.

As will be noted by reference particularly to Fig. 5, the plunger 37 is provided at its lower end with a socket 110 in which mounted a plunger die 111 recessed at 112 to receive the upper portion of the stud member. The lower portion of the plunger is split or kerfed as shown at 113 and is exteriorly screw-threaded at 11 to receive a nut 115. By this arrangement, it will be seen that a combined means for centering and clamping the plunger die 111 within the socket 110 in the end of the plunger is pro vided, and a true alignment and positive retention of the plunger die with respect to the plunger is attained.

The operation of the machine is substantially as follows :-1teferring particularly to Fig. 2 the hopper 11 will be filled with stud members, and the hopper 19 will be filled with post eyelets, and then these hoppers will be rotated, preferably by hand, such rotation being permitted by the pawl. and ratchet mechanisms 15, 16 and 23, 24, respectively, in order to feed studs and post eyelets to the raceways 44 and 64 respectively. Of course the stud members and post eyelets will be stopped in their descent of the raceways by means of the cutoffs 45 and 65. respectively.

The machine is now ready for operation, and we will suppose that it is desired to set a fastener upon a strip of material such as that shown in Fig. 20, which has been previously pierced or punched to provide openings 115 for the reception of the posts 116 of the eyelets. The clutch 108 is actuated to produce a preliminary operation of the machine in order to feed a post eyelet into setting position over the anvil block 84 and a stud member into the cavity 47 in the jaws 42'. Now the strip of material is placed over the post of the eyelet with the post extending through one of the openings 115 and the clutch again actuated. This will cause the plunger 37 to descend, and the recess 112 in the die 111 thereof engaging the stud member, will carry the stud member and with it the jaws 42 downwardly to the limit of movement of the aws 42 with respect to the plunger block 31, at which point the continued descent of the plunger 37, through the medium of the flange of the stud member, will cause the jaws 42 to part and release the stud member which will thereupon be engaged with the post of the eyelet, and further descent of the plunger will cause the eyelet post to be clinched within the stud member to securely attach the fastener to the strip or material as shown in Fig.

The plunger will then rise, and at the same time the guide 87 will be moved upwardly by the operation of the lever 89 can rying with it the filler block 95 as hereinhefore described, and the cutoil's 4:5 and 65 will be operated to release a stud member and a post eyelet respectively, and the pushers i8 and 66 will be advanced to push the stud member and post eyelet respectively into position within the cavity a? of: the jaws 42 and into the cavity formed by the raising of the guide 8? (see F 6), the post eyelet sliding over the table and over the upper surface of the filler block 95 andother. actuatidn oi' the clutch 108.

(ill

ers, a stationary anvil block,

I have described the operation of the chine as above pointed out through a sin gle cycle only, but it is obvious that by sustained actuation of the clutch 108 the ma chine will continue to operate through a plurality of similar cycles until the clutch is again released.

l have shown in Figs. 16 to 19 inclusive the various positions of elements of the set ting mechanism and fastener parts during the setting operation above described, Figs. 18 and 19, showing, respectively, the period in the operation of the mechanisms at which the plunger die is about to engage with the stud member, and the position of the parts 'Wl161'1 the plunger die has pushed the stud member from between the jaws and has I have herein shown and described the inventlon as adapted particularly to a machine for setting glove fasteners, of the bird-cage type, but it is to be understood that it is equally well adapted for attaching other types of fasteners.

It is to be understood also that although I have set forth a particular embodiment of the invention, it is conceivable that various changes may be made in the construction and arrangement of parts without do v parting from the spirit of the invention and the scope oi? the following claims.

What I claim is 1. In a machine for setting snap fastena guide arranged adjacent to said block and slidable with relation thereto, a setting )lung'er arranged torreciprocation in vertical align .ment with said block, atable, a stationary guide mounted on said table, means for feeding fastener parts a) said stationary guide, means for imparting positive sliding" movement to said movable guide in timed relation to the reciprocation oi said plunger to raise said guide above the top of said auviland above the top of said table, means on said movable guideiorminga pocket around 7 raised position, and means for advancing a fastener part fed to said stationary guide into the pocket formed said movable guide. r

in a inachineitor setting snap fasten ers, a stationary anvil block, a guide arrelation thereto, a rai ged 3 out with said block, a table, a stationary guide mounted on said table, means for ieeding fastener parts to said stationary aide, means for. imparting positive sliding ovement to said movable guide in timed ret on to the reciprocation of said plunger to raise said guide above the 'topof said anvil and above the top of said table, an upstand' iiw' flange on said movable guide forming a pocket around said anvil when said guide is in raised position, and meansfor advancing a fastener part fed to said stationary" guide into the pocrret formed by said movable guide. v

3. In a machine for setting snap fasteners, a stationary anvil blockfa guide partially surrounding said. block and movable longitudinally with respect thereto,a setting plunger arranged for reciprocation in vertical alignment with-said block, a table, a stat onary guidemounted on said table, means for feeding fastener parts to said stationary guide, means for imparting positive sliding movement to said movable guide and anvil when said guide is in d adjacent to said block and slidable setting plunger arror reciprocation in vertical alignto raise same above the'plane of said table to form a partial pocket above and around the top oi said block, means for advancing fastener parts fed to'said stationary gu de in timed relation to the movement of said movable guide, anda fillerblock carried by said movable guide and interposed between said anvil block and table.

In a machine for setting snap fasteners, a stationary anvil-block, a guide artially surroundng said bloclrand slidable with relation thereto, a table carrying'a sta: tionary guide, means for feeding fastener parts to said stationary guide, a filler block carried by said movable guide and inter posed between said block andrsaid table, means for imparting movement to said movable gu de to raise the same above theplane of the top of said block and of said table,

means for advancing a fastener part from said stationary guide into position upon said anvil block while said movable guide is in position abovethe top of said block, and means for limiting the upward move ment of said filler block to a position in which its upper face is coincident with th top plane of said table.

In a machine for setting snap fasteners, a stationary anvil block, a guide partially surrounding said block and sl'dable with relation thereto, a table carrying a stationary guide, means for feeding fastener parts to said stationary guide, a filler block carried by said movable guide and interposed between said block and said table, means for impart'ng movement to said movable guide to raise the same above the plane of the top of said block and of said table, means for advancing a fastener part from said stationary guide into position upon said anvil block while said movable guide is in position above the top of said block, means for limiting the upward movement of said filler block to a position in which its upper face is coincident with the top of said table when said movable guide is in raised )osition and means for retainin said filler.

block in such position that its upper face is in a plane with the top of said anvil block when said movable guide is in lowered position. V

6. In a machine for setting snap fasteners, a stationary anvil block, a guide partially surrounding said block and slidable with relation thereto, a table carrying a stationary guide, means for feeding fastener parts to said stationary guide, a spring-pressed filler block carried by said movable guide and interposed between said block and said table, meansfor imparting movement to said movable guide to raise the same above the plane of the top of said block and of said table, means for advancing a fastener part from said stationary guide into position upon said anvil block While said movable guide is in position above the top of said block, means for limiting the upward movement of said filler block to a position in which its upper face coincident with the top of said table when said movable guide is in raised position, and means for retaining said filler block in such position that its upper face is in a plane with the top of said anvil block when said movable guide is in lowered position.

7. In a machine for setting snap fasteners, a stationary anvil block, a guide par tially surrounding said block and slidable with relation thereto, a table carrying astationary guide, means for feeding fastener parts to said stationary guide, a filler block carried by said movable guide and interposed between said block and said table, means for imparting movement to said movable guide to raise the same above the plane of the top of sad block and of said table, means for advancing a fastener part from said stationary guide into position upon said anvil block while said movable guide is in position above the top of said block, a stop shoulder on said filler block arranged to abut against the under surface of said table for limiting the upward-movement of said filler block to a position in which its upper face is coincident with the top of said table when said movable guide is in raised position, and means comprising a pin and slot connection for retaining said filler block in such pos tion that its upper face is in a plane With the top of said anvil block when said movable guide is in lowered position.

In testimony whereof I have hereunto set my hand this 19 day of June A. D. 1923.

FRANK E. WARNER.

Witnesses:

H. B. RIGGS, W. L. Woon. 

